CN108800612B - Solar heat pipe air source heat pump water heater - Google Patents
Solar heat pipe air source heat pump water heater Download PDFInfo
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- CN108800612B CN108800612B CN201810798603.9A CN201810798603A CN108800612B CN 108800612 B CN108800612 B CN 108800612B CN 201810798603 A CN201810798603 A CN 201810798603A CN 108800612 B CN108800612 B CN 108800612B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 86
- 230000005494 condensation Effects 0.000 claims abstract description 82
- 238000009833 condensation Methods 0.000 claims abstract description 82
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 238000001704 evaporation Methods 0.000 claims abstract description 19
- 230000008020 evaporation Effects 0.000 claims abstract description 18
- 239000003570 air Substances 0.000 description 25
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
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Abstract
Description
技术领域Technical field
本发明涉及一种空气源热泵热水器，特别涉及一种太阳能热管式空气源热泵热水器。The invention relates to an air source heat pump water heater, in particular to a solar heat pipe air source heat pump water heater.
背景技术Background technique
现有的空气源热泵热水器主要包括压缩机、冷凝器、蒸发器、节流阀以及其他辅助部件，该空气源热泵热水器是通过蒸发器吸收空气的热量，然后运输热量并在冷凝器中进行放热，从而加热并获得热水。普通空气源热泵热水器只能利用空气的热量，但在低温天气时由于蒸发器传热温差小，换热效率低，导致热泵热水器的能效低下，而且由于吸气温度低，导致压缩机的压缩比过大，使得压缩机的排气过热度大，不利于压缩机及系统的运行。此外，由于低温天气蒸发温度低，蒸发器表面会出现结霜现象，换热性能恶化，需频繁开启除霜模式，严重影响系统运行。Existing air source heat pump water heaters mainly include compressors, condensers, evaporators, throttle valves and other auxiliary components. The air source heat pump water heater absorbs heat from the air through the evaporator, then transports the heat and releases it in the condenser. heat, thereby heating and obtaining hot water. Ordinary air source heat pump water heaters can only use the heat of the air. However, in low temperature weather, due to the small heat transfer temperature difference of the evaporator and low heat exchange efficiency, the energy efficiency of the heat pump water heater is low. Moreover, due to the low suction temperature, the compression ratio of the compressor is reduced. If it is too large, the exhaust gas from the compressor will be superheated, which is not conducive to the operation of the compressor and the system. In addition, due to the low evaporation temperature in low temperature weather, frost will appear on the surface of the evaporator and the heat exchange performance will deteriorate. The defrost mode needs to be frequently turned on, which seriously affects the operation of the system.
太阳能是一种方便获取的可利用的清洁能源，因此如何设计一种装置，使得该装置通过利用太阳能，有效提升空气源热泵热水器系统在低温环境下的热效率，显著改善低温环境下的结霜现象，而且在热泵系统不运行的状态下也能有效地储存太阳能热量，从而节约能源和耗材，是本领域技术人员亟待解决的重要问题。Solar energy is a convenient and available clean energy. Therefore, how to design a device that can effectively improve the thermal efficiency of air source heat pump water heater systems in low-temperature environments by utilizing solar energy, and significantly improve the frosting phenomenon in low-temperature environments? , and can effectively store solar heat when the heat pump system is not running, thereby saving energy and consumables. This is an important issue that technicians in the field need to solve urgently.
因此，有必要做进一步改进。Therefore, further improvements are necessary.
发明内容Contents of the invention
本发明旨在针对以上所述现有空气源热泵热水器存在的不足，提供一种太阳能热管式空气源热泵热水器，该空气源热泵热水器能有效提升空气源热泵热水器系统在低温环境下的热效率，显著改善低温环境下的结霜现象，并在热泵系统不运行的状态下能有效地收集并储存太阳能。The present invention aims to solve the above-mentioned shortcomings of existing air source heat pump water heaters and provide a solar heat pipe type air source heat pump water heater. The air source heat pump water heater can effectively improve the thermal efficiency of the air source heat pump water heater system in low temperature environments, significantly It improves the frosting phenomenon in low-temperature environments and effectively collects and stores solar energy when the heat pump system is not running.
按此目的设计的一种太阳能热管式空气源热泵热水器，包括太阳能集热器、预热蒸发器、压缩机、冷凝器；其特征在于：还包括冷凝热管组和双腔水箱；所述冷凝热管组包括相互并联连接的第一热管冷凝段、第二热管冷凝段和热管蒸发段；所述双腔水箱包括相互连通的预热腔和主加热腔；其中，第一热管冷凝段设置于预热蒸发器上，第二热管冷凝段设置于预热腔上，热管蒸发段设置于太阳能集热器上，冷凝器设置于主加热腔上；所述压缩机与冷凝器连接；压缩机运行时，第一热管冷凝段工作，第二热管冷凝段关闭；压缩机关闭时，第二热管冷凝段工作，第一热管冷凝段关闭。A solar heat pipe air source heat pump water heater designed for this purpose includes a solar collector, a preheating evaporator, a compressor, and a condenser; it is characterized by: it also includes a condensing heat pipe group and a double-cavity water tank; the condensing heat pipe The group includes a first heat pipe condensation section, a second heat pipe condensation section and a heat pipe evaporation section connected in parallel; the double-cavity water tank includes a preheating chamber and a main heating chamber that are connected to each other; wherein, the first heat pipe condensation section is arranged in the preheating chamber. On the evaporator, the second heat pipe condensation section is arranged on the preheating chamber, the heat pipe evaporation section is arranged on the solar collector, and the condenser is arranged on the main heating chamber; the compressor is connected to the condenser; when the compressor is running, The first heat pipe condensing section is working and the second heat pipe condensing section is closed; when the compressor is turned off, the second heat pipe condensing section is working and the first heat pipe condensing section is closed.
所述第一热管冷凝段的进水管路上设置第一电子阀，第二热管冷凝段的进水管路上设置第二电子阀；所述第一热管冷凝段和第二热管冷凝段的出水管路相互交汇汇合，并通过回流管连接热管蒸发段的进水端，回流管上设置有单向阀。A first electronic valve is provided on the water inlet pipeline of the first heat pipe condensation section, and a second electronic valve is provided on the water inlet pipeline of the second heat pipe condensation section; the water outlet pipelines of the first heat pipe condensation section and the second heat pipe condensation section are mutually connected. They meet and merge, and are connected to the water inlet end of the evaporation section of the heat pipe through a return pipe. A one-way valve is provided on the return pipe.
所述第一热管冷凝段采用管翅式换热器，管排为竖向布置；所述第二热管冷凝段采用盘管式换热器；第一热管冷凝段和/或第二热管冷凝段的进水端和出水端为上下布置。The first heat pipe condensation section adopts a tube-fin heat exchanger, and the tube rows are arranged vertically; the second heat pipe condensation section adopts a coil-type heat exchanger; the first heat pipe condensation section and/or the second heat pipe condensation section The water inlet and outlet ends are arranged up and down.
所述第一热管冷凝段和/或第二热管冷凝段的出水端至回流管部分有一定的下倾角度，下倾角度以0°-15°为宜。There is a certain downward slope angle from the water outlet end of the first heat pipe condensation section and/or the second heat pipe condensation section to the return pipe, and the downward slope angle is preferably 0°-15°.
所述预热蒸发器包括蒸发器主体、流道连接件和引风机；所述第一热管冷凝段设置于蒸发器主体迎风的一侧，引风机设置于蒸发器主体另一侧，流道连接件将第一热管冷凝段与蒸发器主体的同侧周边连接，以构成环形的密闭流道；所述蒸发器主体、压缩机和冷凝器环路连接，蒸发器主体与冷凝器之间设置有膨胀阀。The preheating evaporator includes an evaporator body, a flow channel connector and an induced draft fan; the first heat pipe condensation section is arranged on the windward side of the evaporator body, and the induced draft fan is arranged on the other side of the evaporator body, and the flow channels are connected The component connects the first heat pipe condensation section to the same side periphery of the evaporator body to form an annular closed flow channel; the evaporator body, the compressor and the condenser are connected in a loop, and there is a gap between the evaporator body and the condenser. Expansion valve.
所述压缩机与蒸发器主体和/或冷凝器之间设置有四通阀，压缩机通过四通阀与蒸发器主体和/或冷凝器连接。A four-way valve is provided between the compressor and the evaporator body and/or the condenser, and the compressor is connected to the evaporator body and/or the condenser through the four-way valve.
所述双腔水箱由预热腔和主加热腔并靠而成，预热腔上部设置有水箱进口管，主加热腔上部设置有水箱出口管，预热腔下部与主加热腔下部通过腔间连接管相互连通，预热腔与主加热腔通过腔间连接杆相互固定连接。The double-cavity water tank is composed of a preheating chamber and a main heating chamber placed side by side. The upper part of the preheating chamber is provided with a water tank inlet pipe, and the upper part of the main heating chamber is provided with a water tank outlet pipe. The lower part of the preheating chamber and the lower part of the main heating chamber pass through the space between the chambers. The connecting pipes are connected to each other, and the preheating chamber and the main heating chamber are fixedly connected to each other through the connecting rod between the chambers.
所述太阳能集热器为集热板型或真空管型，优选真空管型。The solar thermal collector is a heat collecting plate type or a vacuum tube type, preferably a vacuum tube type.
本发明有以下技术效果：The invention has the following technical effects:
本发明克服了普通空气源热泵热水器在低温环境由于蒸发器传热温差小，换热效率低，导致热泵热水器的能效低下，压缩机的排气过热度大，不利于压缩机及系统的运行，而且由于低温天气蒸发温度低，蒸发器表面会出现结霜现象，换热性能恶化，需频繁开启除霜模式等缺点。本发明的空气源热泵热水器通过利用清洁能源太阳能，提高了低温环境下空气热源的温度，提高了蒸发器的蒸发温度，增大了换热温差，提高了换热效率，从而提高空气源热泵热水器的整体效率；而且还能有效改善低温环境下蒸发器结霜对的现象；此外，在热泵系统不运行的情况下，太阳能可有效地在水箱中进行存储，达到节约耗材和能源的效果。The invention overcomes the problem of low energy efficiency of the heat pump water heater due to the small heat transfer temperature difference and low heat exchange efficiency of the evaporator of ordinary air source heat pump water heaters in low-temperature environments. The exhaust superheat of the compressor is large, which is not conducive to the operation of the compressor and the system. Moreover, due to the low evaporation temperature in low temperature weather, frost will appear on the surface of the evaporator, the heat exchange performance will deteriorate, and the defrost mode needs to be frequently turned on. The air source heat pump water heater of the present invention increases the temperature of the air heat source in a low-temperature environment by utilizing clean energy solar energy, increases the evaporation temperature of the evaporator, increases the heat exchange temperature difference, and improves the heat exchange efficiency, thereby improving the air source heat pump water heater. The overall efficiency; and it can also effectively improve the phenomenon of evaporator frosting in low-temperature environments; in addition, when the heat pump system is not running, solar energy can be effectively stored in the water tank to achieve the effect of saving consumables and energy.
附图说明Description of drawings
图1为本发明一实施例的整体结构示意图。Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention.
图2为本发明一实施例中第一热管冷凝段与预热蒸发器组合的局部剖视图。Figure 2 is a partial cross-sectional view of the combination of the first heat pipe condensation section and the preheating evaporator in an embodiment of the present invention.
图3为本发明一实施例中第一热管冷凝段的工作示意图(局部剖视)。Figure 3 is a schematic diagram (partial cross-section) of the operation of the first heat pipe condensation section in an embodiment of the present invention.
图4为本发明一实施例中预热蒸发器的工作示意图(局部剖视)。Figure 4 is a schematic diagram (partial cross-section) of the operation of the preheating evaporator in one embodiment of the present invention.
图5为本发明一实施例中双腔水箱组装状态下的剖视图。Figure 5 is a cross-sectional view of the double-chamber water tank in an assembled state according to an embodiment of the present invention.
具体实施方式Detailed ways
下面结合附图及实施例对本发明作进一步描述。The present invention will be further described below in conjunction with the accompanying drawings and examples.
参见图1-图5，本太阳能热管式空气源热泵热水器，包括太阳能集热器1、冷凝热管组2、预热蒸发器3、压缩机5、冷凝器6和双腔水箱7；冷凝热管组2包括相互并联连接的第一热管冷凝段21、第二热管冷凝段22和热管蒸发段23；双腔水箱7包括相互连通的预热腔71和主加热腔72；其中，第一热管冷凝段21设置于预热蒸发器3上，第二热管冷凝段22设置于预热腔71内，热管蒸发段23设置于太阳能集热器1上，冷凝器6设置于主加热腔72内；压缩机5与冷凝器6连接。太阳能集热器1和热管蒸发段23构成太阳能模块，预热蒸发器3和第一热管冷凝段21构成热泵系统模块，第二热管冷凝段22、冷凝器6和双腔水箱7构成水箱模块，太阳能热管式空气源热泵热水器由太阳能模块、热泵系统模块和水箱模块相互叠合而成。压缩机5运行时，第一热管冷凝段21工作，第二热管冷凝段22关闭；压缩机5关闭时，第二热管冷凝段22工作，第一热管冷凝段21关闭。本太阳能热管式空气源热泵热水器分三种运行模式：模式一，热泵运行模式时，第二热管冷凝段22进水管路上的第二电子阀42关闭，第二热管冷凝段22截止，而第一热管冷凝段21进水管路上的第一电子阀41开启，第一热管冷凝段21连通，第二热管冷凝段22与预热腔71内的水没有热交换；模式二，热泵停止模式时，第二热管冷凝段22进水管路上的第二电子阀42开启，第二热管冷凝段22连通，而第一热管冷凝段21进水管路上的第一电子阀41关闭，第一热管冷凝段21截止，太阳能通过第二热管冷凝段22将热量储存在预热腔71内的水中；模式三，热泵除霜模式时，第一电子阀41和/或第二电子阀42开启，相应的热管冷凝段连通。Referring to Figures 1 to 5, this solar heat pipe air source heat pump water heater includes a solar collector 1, a condensing heat pipe group 2, a preheating evaporator 3, a compressor 5, a condenser 6 and a double-cavity water tank 7; the condensing heat pipe group 2 includes a first heat pipe condensation section 21, a second heat pipe condensation section 22 and a heat pipe evaporation section 23 that are connected in parallel; the double-chamber water tank 7 includes a preheating chamber 71 and a main heating chamber 72 that are connected to each other; wherein, the first heat pipe condensation section 21 is arranged on the preheating evaporator 3, the second heat pipe condensation section 22 is arranged in the preheating chamber 71, the heat pipe evaporation section 23 is arranged on the solar collector 1, the condenser 6 is arranged in the main heating chamber 72; the compressor 5 is connected to condenser 6. The solar collector 1 and the heat pipe evaporation section 23 constitute the solar module, the preheating evaporator 3 and the first heat pipe condensation section 21 constitute the heat pump system module, the second heat pipe condensation section 22, the condenser 6 and the double-cavity water tank 7 constitute the water tank module. The solar heat pipe air source heat pump water heater is composed of a solar module, a heat pump system module and a water tank module stacked on top of each other. When the compressor 5 is running, the first heat pipe condensing section 21 works and the second heat pipe condensing section 22 is closed; when the compressor 5 is turned off, the second heat pipe condensing section 22 works and the first heat pipe condensing section 21 is closed. This solar heat pipe air source heat pump water heater has three operating modes: Mode 1, in the heat pump operating mode, the second electronic valve 42 on the water inlet pipe of the second heat pipe condensation section 22 is closed, the second heat pipe condensation section 22 is cut off, and the first The first electronic valve 41 on the water inlet pipe of the heat pipe condensation section 21 is opened, the first heat pipe condensation section 21 is connected, and there is no heat exchange between the second heat pipe condensation section 22 and the water in the preheating chamber 71; in mode two, when the heat pump stops, the The second electronic valve 42 on the water inlet pipeline of the second heat pipe condensation section 22 is opened, and the second heat pipe condensation section 22 is connected, while the first electronic valve 41 on the water inlet pipeline of the first heat pipe condensation section 21 is closed, and the first heat pipe condensation section 21 is cut off. Solar energy stores heat in the water in the preheating chamber 71 through the second heat pipe condensation section 22; in mode three, in the heat pump defrost mode, the first electronic valve 41 and/or the second electronic valve 42 are opened, and the corresponding heat pipe condensation sections are connected. .
进一步说，第一热管冷凝段21的进水管路上设置第一电子阀41，第二热管冷凝段22的进水管路上设置第二电子阀42；第一热管冷凝段21和第二热管冷凝段22的出水管路相互交汇汇合，并通过回流管24连接热管蒸发段23的进水端，回流管24上设置有单向阀9。Furthermore, a first electronic valve 41 is provided on the water inlet pipeline of the first heat pipe condensation section 21, and a second electronic valve 42 is provided on the water inlet pipeline of the second heat pipe condensation section 22; the first heat pipe condensation section 21 and the second heat pipe condensation section 22 The water outlet pipelines meet each other and are connected to the water inlet end of the heat pipe evaporation section 23 through a return pipe 24. A one-way valve 9 is provided on the return pipe 24.
进一步说，第一热管冷凝段21采用管翅式换热器，为减少热管工质的流动阻力以及更好利用重力回流，管排为竖向布置；第二热管冷凝段22采用盘管式换热器(即螺旋管换热器)，采用水平的蛇形或者平行流集液管式设置，有利于安装和工质换热流动；第一热管冷凝段21和/或第二热管冷凝段22的进水端和出水端为上下布置。Furthermore, the first heat pipe condensation section 21 adopts a tube-fin heat exchanger. In order to reduce the flow resistance of the heat pipe working medium and better utilize the gravity return flow, the tube rows are arranged vertically; the second heat pipe condensation section 22 adopts a coil-type heat exchanger. The heat exchanger (i.e., spiral tube heat exchanger) adopts a horizontal serpentine or parallel flow collector tube type arrangement, which is conducive to installation and heat exchange flow of the working fluid; the first heat pipe condensation section 21 and/or the second heat pipe condensation section 22 The water inlet and outlet ends are arranged up and down.
进一步说，第一热管冷凝段21和/或第二热管冷凝段22的出水端至回流管24部分有一定的下倾角度，下倾角度优选0°-15°为宜。Furthermore, there is a certain downward angle from the water outlet end of the first heat pipe condensation section 21 and/or the second heat pipe condensation section 22 to the return pipe 24, and the downward angle is preferably 0°-15°.
进一步说，预热蒸发器3包括蒸发器主体31、流道连接件32和引风机33；第一热管冷凝段21设置于蒸发器主体31迎风的一侧，引风机33设置于蒸发器主体31另一侧，空气将先与第一热管冷凝段21进行换热，然后与蒸发器主体31换热，此时蒸发器主体31的传热温差增大，换热效率有效提高；流道连接件32将第一热管冷凝段21与蒸发器主体31的同侧周边拆卸式连接，以构成环形的密闭流道，同时起到固定支撑作用；蒸发器主体31、压缩机5和冷凝器6环路连接，蒸发器主体31与冷凝器6之间设置有膨胀阀8。Furthermore, the preheating evaporator 3 includes an evaporator main body 31, a flow channel connector 32 and an induced draft fan 33; the first heat pipe condensation section 21 is arranged on the windward side of the evaporator main body 31, and the induced draft fan 33 is arranged on the evaporator main body 31. On the other side, the air will first exchange heat with the first heat pipe condensation section 21, and then exchange heat with the evaporator body 31. At this time, the heat transfer temperature difference of the evaporator body 31 increases, and the heat exchange efficiency is effectively improved; the flow channel connector 32. Detachably connect the first heat pipe condensation section 21 to the same side periphery of the evaporator body 31 to form an annular closed flow channel, which also serves as a fixed support; the evaporator body 31, the compressor 5 and the condenser 6 loop Connection, an expansion valve 8 is provided between the evaporator body 31 and the condenser 6 .
进一步说，压缩机5与蒸发器主体31和/或冷凝器6之间设置有四通阀10，压缩机5通过四通阀10与蒸发器主体31和/或冷凝器6连接。Furthermore, a four-way valve 10 is provided between the compressor 5 and the evaporator body 31 and/or the condenser 6 , and the compressor 5 is connected to the evaporator body 31 and/or the condenser 6 through the four-way valve 10 .
进一步说，双腔水箱7由预热腔71和主加热腔72并靠而成，预热腔71和主加热腔72外壁均设置有保温层77；预热腔71上部设置有水箱进口管74，主加热腔72上部设置有水箱出口管75，预热腔71下部与主加热腔72下部通过腔间连接管73相互连通，水先从水箱进口管74进入预热腔71，然后通过腔间连接管73进入主加热腔72，最后热水从水箱出口管75输出；预热腔71与主加热腔72通过腔间连接杆76相互固定连接，以连接和固定两个腔体。其中，腔间连接管73可设置于与腔间连接杆76相同或不同的壁面上，可用管道硬连接或软连接；优选地，腔间连接管73应设置于预热腔71和主加热腔72相对的壁面上，并采用管道软连接。Furthermore, the double-cavity water tank 7 is composed of a preheating chamber 71 and a main heating chamber 72 that are adjacent to each other. The outer walls of the preheating chamber 71 and the main heating chamber 72 are both provided with an insulation layer 77; the upper part of the preheating chamber 71 is provided with a water tank inlet pipe 74. , the upper part of the main heating chamber 72 is provided with a water tank outlet pipe 75. The lower part of the preheating chamber 71 and the lower part of the main heating chamber 72 are connected to each other through the inter-cavity connecting pipe 73. Water first enters the preheating chamber 71 from the water tank inlet pipe 74, and then passes through the inter-cavity connection. The pipe 73 enters the main heating chamber 72, and finally hot water is output from the water tank outlet pipe 75; the preheating chamber 71 and the main heating chamber 72 are fixedly connected to each other through an inter-cavity connecting rod 76 to connect and fix the two cavities. Among them, the inter-cavity connecting pipe 73 can be disposed on the same or different wall surface as the inter-cavity connecting rod 76, and can be hard-connected or soft-connected with pipes; preferably, the inter-cavity connecting pipe 73 should be disposed on the preheating chamber 71 and the main heating chamber. 72 on the opposite walls, and use flexible pipe connections.
进一步说，太阳能集热器1为真空管型，热管蒸发段23设置于真空管内。Furthermore, the solar collector 1 is of vacuum tube type, and the heat pipe evaporation section 23 is arranged in the vacuum tube.
工作原理：1.热泵运行时，第一电子阀41开启，第一热管冷凝段21支管路连通，同时第二电子阀42关闭，第二热管冷凝段22支管路截止；此时热管热管工质从热管蒸发段23出发，依次经过：太阳能集热器1、第一电子阀41、第一热管冷凝段21、回流管24、单向阀9，最后回到热管蒸发段23；空气首先通过第一热管冷凝段21与热管工质进行换热，空气温度升高，然后通过蒸发器主体31与热泵的制冷剂进行换热，此时空气与蒸发器主体31中的制冷剂的温差增大，蒸发器主体31的换热能力增大，从而热泵的系统效率随之提高，此外，第一热管冷凝段21提高了环境空气温度，有效改善由于低温天气时，环境空气温度过低造成的蒸发器结霜问题。2.热泵停止时，第二电子阀42开启，第二热管冷凝段22支管路连通，同时第一电子阀41关闭，第一热管冷凝段21支管路截止；此时热管热管工质从热管蒸发段23出发，依次经过：太阳能集热器1、第二电子阀42、第二热管冷凝段22、回流管24、单向阀9，最后回到热管蒸发段23；工质将太阳能运输至第二热管冷凝段22，并与双腔水箱7的预热腔71中的水进行换热，从而将在热泵不运行时，有效将太阳能收集并储存在预热腔71的水中。Working principle: 1. When the heat pump is running, the first electronic valve 41 is opened, and the 21 pipes in the first heat pipe condensation section are connected. At the same time, the second electronic valve 42 is closed, and the 22 pipes in the second heat pipe condensation section are cut off; at this time, the working fluid of the heat pipe is Starting from the heat pipe evaporation section 23, it passes through in sequence: the solar collector 1, the first electronic valve 41, the first heat pipe condensation section 21, the return pipe 24, the one-way valve 9, and finally returns to the heat pipe evaporation section 23; the air first passes through the A heat pipe condensation section 21 exchanges heat with the heat pipe working medium, the air temperature rises, and then exchanges heat with the refrigerant of the heat pump through the evaporator body 31. At this time, the temperature difference between the air and the refrigerant in the evaporator body 31 increases. The heat exchange capacity of the evaporator body 31 is increased, thereby improving the system efficiency of the heat pump. In addition, the first heat pipe condensation section 21 increases the ambient air temperature, effectively improving the evaporator failure caused by the low ambient air temperature in low temperature weather. Frost problem. 2. When the heat pump stops, the second electronic valve 42 opens, and the 22 branches of the second heat pipe condensation section are connected. At the same time, the first electronic valve 41 closes, and the 21 branches of the first heat pipe condensation section are cut off; at this time, the heat pipe working medium evaporates from the heat pipe. Starting from section 23, it passes through in sequence: solar collector 1, second electronic valve 42, second heat pipe condensation section 22, return pipe 24, one-way valve 9, and finally returns to heat pipe evaporation section 23; the working fluid transports the solar energy to the section 23. The second heat pipe condensation section 22 exchanges heat with the water in the preheating chamber 71 of the double-chamber water tank 7, so that when the heat pump is not running, solar energy is effectively collected and stored in the water in the preheating chamber 71.
通过以上设置，本太阳能热管式空气源热泵热水器可在运行和不运行状态都可有效利用太阳能，并提升热泵系统的运行效率，改善低温环境下热泵蒸发器的结霜难题。Through the above settings, this solar heat pipe air source heat pump water heater can effectively utilize solar energy in both operating and non-operating states, improve the operating efficiency of the heat pump system, and improve the frosting problem of the heat pump evaporator in low-temperature environments.
上述为本发明的优选方案，显示和描述了本发明的基本原理、主要特征和本发明的优点。本领域的技术人员应该了解本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等同物界定。The above is the preferred embodiment of the present invention, showing and describing the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principles of the present invention. The present invention may have various modifications without departing from the spirit and scope of the present invention. changes and improvements, which fall within the scope of the claimed invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.
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| CN110081618A (en) * | 2019-06-03 | 2019-08-02 | 西南交通大学 | A kind of heat pipe photo-thermal system based on double-condenser |
| CN110953654A (en) * | 2019-12-26 | 2020-04-03 | 中铁第四勘察设计院集团有限公司 | Outdoor unit and composite heat pump system |
| CN112781417B (en) * | 2020-04-10 | 2022-02-22 | 山东黄金集团有限公司 | Heat pipe heat exchanger combination and ground source heat pump system thereof |
| CN113587493A (en) * | 2021-08-11 | 2021-11-02 | 青岛科创蓝新能源股份有限公司 | Water phase change preheating air source heat pump system under severe cold working condition |
| CN119879431B (en) * | 2025-02-11 | 2025-09-19 | 山东鼎浩信息工程有限公司 | A low temperature compensation solar air source heat pump system |
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